Abstract: A method and apparatus for generating frames to apply error correction to data including a plurality of consecutive data groups are provided. Upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, the number of first code rate frames, which is the number of frames in the n-th data group for which a first code rate is used, is calculated based on the number of first code rate bits calculated based on the ratio of the length of data in an (n?1)-th data group for which the first code rate is used. The number of second code rate frames, which is the number of frames in the n-th data group for which the second code rate is used, is calculated based on the number of second code rate bits calculated based on the number of first code rate bits. Frames for error correction are generated based on the number of first code rate frames and the number of second code rate frames.

Abstract: Systems and methods for displaying object data within an airport moving map (“AMM”) are disclosed. In various embodiments, the systems may comprise an avionics database, a flight management system comprising a processor communicatively coupled to the avionics database, and/or a display communicatively coupled to the processor, the processor configured to receive AMM data from the avionics database, receive object data, and/or display the AMM, the AMM including an image of the object, the AMM further including an image of an area that may be obscured from a field of view of a pilot by the object.

Abstract: Provided is an apparatus and method for extracting a movement path, the movement path extracting apparatus including an image receiver to receive an image from a camera group in which a mutual positional relationship among cameras is fixed, a geographic coordinates receiver to receive geographic coordinates of a moving object on which the camera group is fixed, and a movement path extractor to extract a movement path of the camera group based on a direction and a position of a reference camera of the camera group using the image and the geographic coordinates.

Abstract: A device for determining navigation parameters of an aircraft during a landing phase includes a video system including at least one digital video camera arranged on the aircraft, the digital video camera being configured to generate on the aircraft current video data relating to at least one characteristic point on the Earth, whose coordinates are known, and a data processing unit including an extended Kalman filter and configured to determine the navigation parameters on the basis of current navigation data of the aircraft, arising from a satellite navigation system, current inertial data of the aircraft, as well as said video data.

Abstract: Video event recorders are coupled to a vehicle power source via an on-board diagnostic system including its power bus, data bus, and scanner port connector. Video event recorders are provided with a power input arranged in conjunction with a standard ODBII type “D” connector. Systems further include an extension cable between the connector and the vehicle event record to accommodate mounting needs associated with each. In advanced versions, both OBD power and data networks are coupled to the vehicle event recorded such that data relating to vehicle diagnostic systems can be captured in a triggered event along with video data. In addition, some versions are provided with special detection mechanism to determine the use state of a vehicle and adjust application of power accordingly. Thus an “in-use” detector is coupled to the vehicle and/or OBD systems to provide feedback which helps to conserve power and regulate the power connections.

Abstract: The invention relates to a method for navigation of an aerial vehicle. The method comprises providing a sensor image from an aerial vehicle sensor. The method also comprises to repeatedly, until at least one predetermined criterion is reached, perform the step of setting input data, where the input data comprises information related to pitch angle, roll angle, yaw angle and three-dimensional position of the aerial vehicle, the step of providing a two-dimensional image from a database based on the input data, where the database comprises three-dimensional geo-referenced information of the environment, and the step of comparing the sensor image and the two dimensional image from the database. The method further comprises using the input data for which the two images correspond best to each other for determining at least one of the following quantities pitch angle, roll angle, yaw angle and three-dimensional position of the aerial vehicle.

Abstract: The invention relates to a method for navigation of an aerial vehicle. The method comprises providing a sensor image from an aerial vehicle sensor. The method also comprises to repeatedly, until at least one predetermined criterion is reached, perform the step of setting input data, where the input data comprises information related to pitch angle, roll angle, yaw angle and three-dimensional position of the aerial vehicle, the step of providing a two-dimensional image from a database based on the input data, where the database comprises three-dimensional geo-referenced information of the environment, and the step of comparing the sensor image and the two dimensional image from the database. The method further comprises using the input data for which the two images correspond best to each other for determining at least one of the following quantities pitch angle, roll angle, yaw angle and three-dimensional position of the aerial vehicle.

Abstract: Method for locating, in a fixed frame of reference (RG), a moving craft from the craft, comprising two characteristic points, the rolling and pitching of the craft in the fixed frame of reference having been determined, so as to determine the yawing and/or the coordinates of the craft in the fixed frame of reference: a/ a local frame of reference (Rn) comprising an axis deviating from the yaw axis of the fixed frame of reference by a known angle resulting from a rotation about a first axis of the first local frame of reference dependent on the roll (R) and a rotation dependent on the pitch (P) is defined; b/ the coordinates of each characteristic point (P1, P2) in said local frame of reference being equal, to within an unknown common factor, to the multiplying of a matrix defining said succession of rotations by a matrix of intrinsic image capture parameters and by the coordinates of a pixel corresponding to the characteristic point in an image captured from the craft, the values adopted by the quotients rela

Abstract: A display system for an aircraft includes a processing unit configured to determine runway lighting information and lighting status for runway lighting associated with a selected runway and to generate display commands based on the runway lighting information and the lighting status; and a display device coupled the processing unit and configured to receive the display commands and to display symbology representing the runway lighting information.

Abstract: There is provided in one embodiment a target locator and interceptor imaging and sensing assembly. The assembly has a disc shaped aerodynamic member configured to spin and self-position in flight, a plurality of pulsed thrusters positioned on the member, and a plurality of imaging and sensing devices positioned along a perimeter of the member. The assembly further has one or more munitions devices coupled to one or more detonators, both being coupled to the aerodynamic member. The assembly further has one or more antenna devices positioned on the member and in communication with a first processor device on the member. The first processor device receives data obtained by the plurality of imaging and sensing devices and wirelessly transmits the data to a second processor device not positioned on the member. The assembly further has a power supply powering the assembly.

Abstract: A lengthy stretched film made of a thermoplastic resin, having, over the width direction of at least 1300 mm, a value of an orientation angle ? to a take-up direction in a range of 40° to 50° and fluctuation thereof of 1.0° or less, and a value of an average Nz coefficient in a range of 1.3 to 2.0 and fluctuation thereof of 0.10 or less. A lengthy circularly polarizing plate constituted by laminating the lengthy stretched film with a lengthy polarizer. A reflective display type liquid crystal display device provided with the circularly polarizing plate constituted by trimming the lengthy circularly polarizing plate to a desired size.

Abstract: A method is provided for semi-automatic operation of a portable control device for a remote-controlled, unmanned vehicle. The method includes the steps of monitoring parameters of an operational environment of the portable control device, switching from a manual operation mode to a semi-automatic operation mode in response to occurrence of predetermined criteria within the operational environment, and presenting a semi-automatic operation graphical user interface to a user of the portable control device. The semi-automatic operation graphical user interface includes a reduced set of user interfaces for the semi-automatic operation mode presented by the portable control device.

Abstract: A method of planning a flight path for a search can include receiving, by a control system, an indication of a search area boundary; receiving, by the control system, an indication of a selected search pattern; determining, by the control system, a flight path based on the search area boundary and the selected search pattern; and transmitting one or more indications of the flight path to an unmanned aerial vehicle.

Abstract: A handle bar route extension mechanism for creating or modifying a flight route. The handle bar route extension mechanism can allow a user to create or modify a flight route using a destination point. The handle bar route extension mechanism can be automatically rendered in a display in response to a touch input. In some configurations, the handle bar route extension mechanism may be rendered in a display in various directions or various lengths based on different inputs. In further configurations, more than one handle bar route extension mechanism may be rendered in a display.

Abstract: The disclosed embodiments relate to methods and systems for identifying air traffic. A method is provided in which images from a camera positioned on the aircraft are processed via a processor. The processor uses data from the images to identify air traffic within a field of view of the camera and displays an indication of the position of the air traffic relative to the aircraft on a display to provide air traffic information. A system is also provided that includes an aircraft that includes a camera configured to provide image data within a field of view of the camera to a processor for processing the image data to identify air traffic within the field of view of the camera. The processor displays an icon representing the position of the air traffic within the field of view of the camera on a display to provide air traffic information.

Abstract: An apparatus for generating an overview image of a plurality of images comprises a storage unit and an image processor. The storage unit stores a plurality of processed images of the overview image and is able to provide the overview image containing the plurality of processed images at their assigned positions for displaying. The image processor determines feature points of a new image and compares the determined feature points of the new image with feature points of a stored processed image to identify common feature points and to obtain 3-dimensional positions of the common feature points. Further, the image processor determines common feature points located within a predefined maximum distance of relevance to a reference plane based on the 3-dimensional positions of the common feature points to identify relevant common feature points.

Abstract: An apparatus for rendering surroundings includes an image source, image signal processing device, and image reproduction device. The image source feeds input image signals to the image signal processing device to create output image signals for a panoramic image that are forwarded to the image reproduction device for displaying the panoramic image. The image signal processing device processes the input image signals such that a first region of the panoramic image is reproduced undistorted or compressed in a first compression and a second region of the panoramic image is reproduced compressed in a second compression. The image signal processing device is configured such that the portion of the regions reproduced undistorted or compressed is variably selectable, the compression of the regions reproduced compressed is selectable, and these changes in the region reproduced compressed may occur during the operation of the apparatus for rendering surroundings.

Abstract: An apparatus for generating an overview image of a plurality of images includes an image preprocessor which preprocesses a new image by assigning the new image to a position in the overview image based on position information contained by meta-data of the new image. A storage unit stores a plurality of images of the overview image and provides the overview image for display. Further, the image processor receives accuracy information of the position information. The image processor determines an overlap region of the preprocessed new image and a stored image within the overview image based on the assigned positions of the preprocessed new image and of the stored image. Further, a controllable processing engine processes the preprocessed new image by re-adjusting the assigned position of the preprocessed new image based on comparing features of the overlap region of the preprocessed new image and the stored image.

Abstract: Systems and methods are disclosed relating to acquisition of images regarding large area objects or large areas. In one exemplary embodiment, there is provided a method of obtaining or capturing, via a first system that includes one or more first image capturing devices, overview images, wherein the overview images depict first areas, as well as obtaining or capturing, via a second system that includes a plurality of image capturing devices, detail images characterized as being related to each other along an image axis. Moreover, the detail images may depict second areas that are subsets of the first areas, they may be arranged in strips parallel to the image axis, and they may have a higher resolution than corresponding portions of the first images.

Abstract: A system and method for video navigation are disclosed. Motion analysis can be performed upon camera images to determine movement of a vehicle, and consequently present position of the vehicle. Feature points can be identified upon a video image. Movement of the feature points between video frames is indicative of movement of the vehicle. Video navigation can be used, for example, in those instances wherein GPS navigation is unavailable.

Abstract: Methods, systems, and computer-readable media described herein provide for filtering relevant traffic from sensed or received traffic information for display, enhancement, or alerting, without requiring knowledge of runway, taxiway, or taxi route locations at an airport. Traffic information is sensed or received regarding nearby aircraft or other vehicles and is filtered using one or more filtering strategies to determine a subset of relevant traffic for which to display traffic indicators and/or traffic data on a display unit in the aircraft. The subset of relevant traffic may be further tested for convergence or potential convergence and filtered using one or more additional filtering strategies to determine traffic having critical traffic conditions for which to enhance the display of the traffic indicators on the display unit or to alert the flight crew of the critical traffic conditions.

Abstract: A system and method for aircraft taxi gate selection based on passenger connecting flight information. In one embodiment, a communication link is established between an aircraft computing system and a ground station system via a communication network provided by the ground station system. Further, aircraft taxi gate selection information and the passenger connecting flight information are substantially simultaneously displayed on a display device to a pilot upon establishing the communication link. Furthermore, the pilot is allowed to select an aircraft taxi gate based on the displayed aircraft taxi gate selection information and passenger connecting flight information.

Abstract: The invention relates to a method for adjustment of a harmonization compensation applied to alleviate a discrepancy of conformity between a video image transmitted by a video transducer (1) and projected by a head-up display device (5, 6), of an aircraft, and an external scene ahead of the aircraft. At least one equipment item of the aircraft—preferably the said HUD device—equipped with at least one control element accessible in the cockpit, is programmed to be able to function according to a nominal mode and according to a maintenance mode, in which at least one of its control elements, known as a redirected control element, is used to define the applied harmonization compensation. An operator activates the maintenance mode and starts an adjustment operation, in which he modifies in real time the applied harmonization compensation, by manipulating at least one redirected control element, until the video image is matched with the external scene.

Abstract: A method and apparatus for displaying an image of terrain obtained from a position above the terrain. An image of an object is detected in the image of the terrain for an object that is positioned between the terrain and the position above the terrain. The detected image of the object is replaced in the image of the terrain with replacement image data. For example, the replacement image data may be image data for the terrain below the object. The image of the terrain with the replacement image data may be displayed. The method and apparatus may be used to replace images of clouds in images of the surface of the earth below an aircraft with image data for the surface of the earth below the clouds.

Abstract: An optical scanner system for contiguous three-dimensional topographic or volumetric imaging of a surface from an aircraft or spacecraft is disclosed. A servo controller synchronizes the rotation rates of a pair of wedge scanners with high precision to the multi-kilohertz laser fire rate producing an infinite variety of well-controlled scan patterns. This causes the beam pattern to be laid down in precisely the same way on each scan cycle, eliminating the need to record the orientations of the wedges accurately on every laser fire, thereby reducing ancillary data storage or transmission requirements by two to three orders of magnitude and greatly simplifying data preprocessing and analysis. The described system also uses a holographic element to split the laser beam into an array that is then scanned in an arbitrary pattern.

Abstract: Some embodiments relate to a method of controlling a flight of a flight vehicle according to a first mode of operation and changing the mode of operation to a second mode of operation having a different bandwidth than the first mode of operation. Other embodiments relate to a flight-control system for a flight vehicle configured to control a flight of a flight vehicle according to a first mode of operation and to control the flight of the flight vehicle according to a second mode of operation to use less energy than the first mode of operation. Other embodiments relate to a control actuation system configured to control positions of aerodynamic elements in a flight vehicle in response to commands from a guidance system according to a first mode of operation and to change the mode of operation to a second mode of operation having a different bandwidth than the first mode of operation.

Abstract: A landing aid device for an aircraft generates video images of a portion of the field of vision using a sensor situated in front of the aircraft intended for picture-taking during poor visibility conditions, and extracts contours from the video images making it possible to delimit at least one first known shape included in each image. A first head up display includes a display zone, which occupies a portion of the visor of the cockpit superimposed on the exterior landscape, and a symbology for generating information representing symbols intended to aid piloting is displayed on the display, wherein at least one first symbol comprising landing aid information is generated on the basis of the contours of the first shape and displayed on the display.

Abstract: A control system for a vehicle includes a period determination module and a motion detection module. The period determination module determines a period for the vehicle to travel a predetermined distance based on a desired transmission output shaft speed (TOSS), a target transmission output shaft position, a final drive ratio of the vehicle, and a tire size of the vehicle. The motion detection module detects whether the vehicle is moving based on the TOSS during the determined period.

Abstract: A method for moving object detection, comprising generating a time series of multi-exposures of scenes, each multi-exposure of a scene comprising a sequence of at least two at least partially overlapping images of that scene captured in rapid succession, wherein the time series of multi-exposures periodically revisits substantially the same scenes, detecting moving objects within each multi-exposure by comparing its sequence of overlapping images, and tracking objects by comparing moving objects detected within multi-exposures of substantially the same scenes.

Abstract: A method and system for maintaining the line of sight of an airborne camera fixed on a target by compensating for overflight velocity of the aircraft. The compensation system automatically commands an angular velocity of the line of sight to maintain the camera pointing at the target being overflown. This angular velocity of the line of sight is computed based upon the aircraft overflight velocity and upon a vector from the aircraft to the target. This automatic compensation for aircraft overflight velocity causes the line of sight to remain fixed upon the target. The compensation system drives a gimbal system upon which the camera is mounted to perform this compensation automatically.

Abstract: The aviation emergency response system includes a number of ground subsystems located on an airport, and a number of subsystems installed in an aircraft. The ground subsystems may include dispensers along the edges of the runway(s) for dispensing foam, water, and/or deicing fluid, and an array of cameras installed along the runway edges. Low lateral retaining dams may be provided along the edges of the runway(s), and appropriate drainage is also provided for the runway. A tire-puncturing apparatus may also be installed in the surface of the runway, and energy-absorbing overruns are provided at the runway ends. A control center including appropriate monitoring and control systems is also provided on the airport. Aircraft may be equipped with external cameras for monitoring the condition of the aircraft in flight, and corresponding annunciator systems placed in the aircraft cockpit for appropriate response(s) by the flight crew.

Abstract: A present novel and non-trivial system, apparatus, and method for generating HUD image data from synthetic image data is disclosed. Based on a multi-channel pixel intensity data set generated by a synthetic vision system, a single-channel pixel intensity data set representative of a lighted solid image of terrain comprised of a plurality of intensities of one color may be generated. The single-channel pixel intensity image data set may be determined as a function of multi-channel pixel intensity data set and channel weighting, where channel weighting may be based on sky and/or terrain colors employed by an SVS. Based on the multi-channel pixel intensity data set, a three-dimensional perspective scene outside the aircraft may be presented to the pilot on a HUD combiner. Also, the multi-channel pixel intensity data set may be modified by using at least one chroma key, where such chroma key may be assigned to a specific multi-channel pixel intensity value.

Abstract: Embodiments include aircraft systems, display systems, and methods for displaying three dimensional (3D) images. A backlight is controlled to sequentially alternate between activating a first set of light producing elements of the backlight and activating a second set of light producing elements of the backlight, where light produced by the first set of light producing elements is refracted by a lens system into a left eye viewing envelope, and light produced by the second set of light producing elements is refracted by the lens system into a right eye viewing envelope. A liquid crystal display (LCD) panel is controlled synchronously with the backlight in order to selectively pass or block portions of the light produced by the backlight in order to produce one or more left eye image frames in the left eye viewing envelope and one or more right eye image frames in the right eye viewing envelope.

Abstract: A luminous pixel array includes a plurality of luminous flying vehicles configured to move in 3-dimensional space. A first luminous flying vehicle of the plurality of luminous flying vehicles corresponds to at least one pixel of the luminous pixel array. The first luminous flying vehicle is configured to radiate a first color and intensity of light.

Abstract: A display system of the present invention includes a liquid crystal platform section (200) which outputs display data for displaying, on a liquid crystal display section (100), an image in accordance with information obtained from an automobile. The liquid crystal platform section (200) includes a DIC (201) which generates display data and calculates a display position of the image to be displayed on the liquid crystal display section (100) from the obtained information and which causes the generated display data to be displayed in the calculated image display position. The DIC (201) updates display so that the image moves at frame intervals from a start position of image display to the image display position calculated from the automobile information currently obtained, when an interval at which the information is obtained is longer than each of the frame intervals for displaying the image.

Abstract: A lane departure prevention support apparatus comprises: imaging means for capturing an image of a lane boundary line which defines a traveling lane; vehicle position detecting means for recognizing the lane boundary line in a recognition area of captured image data to detect a host vehicle position within the traveling lane in a width direction; assisting means for performing driver assist using the recognition result of the lane boundary line; displaying means for displaying the recognition result of the lane boundary line; and recognition result display controlling means for displaying an unrecognized lane boundary line according to the host vehicle position, if one of left and right white lines is not recognized, wherein a display of the unrecognized lane boundary line is not such a display which indicates that the lane boundary line is not recognized.

Abstract: Systems and methods for detecting a present location of a target from a moving platform are provided. One system includes a movement module for estimating the present location of the target, a prediction module for estimating future locations of the target, and a first processor. The first processor is configured to receive present location estimates, receive future location estimates, store the future location estimates to create a first future location estimate, and determine the present location of the target based on the present location estimate and/or the first future location estimate. One method includes receiving an estimate of the present location of the moving platform, receiving an estimate of a future location of the moving platform, and determining the present location of the target based on the estimate of the present location and/or the estimate of the future location.

Abstract: The invention is for a sensor for use in spacecraft navigation and communication. The system has two articulated telescopes providing navigation information and orientation information as well providing communications capability. Each telescope contains a laser and compatible sensor for optical communications and ranging, and an imaging chip for imaging the star field and planets. The three optical functions share a common optical path. A frequency selective prism or mirror directs incoming laser light to the communications and ranging sensor. The Doppler shift or time-of-flight of laser light reflected from the target can be measured. The sensor can use the range and range rate measured from the incoming laser along with measurements from the imaging chip to determine the location and velocity of the spacecraft. The laser and laser receiver provide communications capability.

Abstract: A camera for identifying soiling on a protective screen, such as a vehicle windscreen, is focused on a scene through the protective screen and can be used to identify soiling and for other applications, e.g. to identify driving lanes and/or objects in the scene. Soiling is identified merely by evaluating successively recorded image frames, and artificial reference frames or reference objects are not required. A prerequisite is that the relative speed vrel between the camera and at least one recorded object in the scene is not equal to zero and its trajectory in the image is predicted. By comparing the relevant image frame sections, possible soiling on subregions of the protective screen is identified.

Abstract: A display system and method for an aircraft simultaneously displays the terrain under the flight plan, or under the current track of the aircraft, as both a two-dimensional lateral situation view image and as a perspective vertical situation view image. This provides improved tactical flight planning, and that does not erroneously show the flight plan passing through the displayed terrain.

Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.

Abstract: The present invention provides a ground-based camera surveying and guiding method for aircraft landing and unmanned aerial vechicle recovery based on the camera surveying technology, which is a ground-based camera surveying and guiding system mainly including several video cameras arranged near the landing areas of an aircraft or an unmanned aerial vechicle. During the approaching process of the aircraft or the unmanned aerial vechicle, the system performs imaging of the aircraft in real time and detects movement parameters such as the track, velocity, acceleration, attitude and the offset relative to the glide slope of the aircraft or the unmanned aerial vechicle in real time by analyzing images and applying camera surveying method and technology, so as to provide guidance for aircraft landing or unmanned aerial vechicle recovery. The method is an autonomic guiding survey without interferences from others, which has high accuracy and reliability. The hardware devices are mature, simple and have low cost.

Abstract: An image processing system and the like capable of accurately recognizing lane edges defined by dotted lane marks are provided. According to an image processing system (100) of the present invention, a first processing unit (110) searches a road surface image captured by a vehicle-mounted camera for a “small area,” which is composed of high- or low-luminance pixels and satisfies “eligibility conditions” on the “size,” “shape,” and “arrangement” in the road surface image. Additionally, a second processing unit (120) recognizes “lane edges” of the lane along which the vehicle travels on the basis of the “small area.” Furthermore, a third processing unit (130) sets a “search range” of the small area searched by the first processing unit (110) on the basis of a result of the foregoing recognition of the lane edges by the second processing unit (120).

Abstract: An apparatus for generating an overview image of a plurality of images includes an image preprocessor which preprocesses a new image by assigning the new image to a position in the overview image based on position information contained by meta-data of the new image. A storage unit stores a plurality of images of the overview image and provides the overview image for display. Further, the image processor receives accuracy information of the position information. The image processor determines an overlap region of the preprocessed new image and a stored image within the overview image based on the assigned positions of the preprocessed new image and of the stored image. Further, a controllable processing engine processes the preprocessed new image by re-adjusting the assigned position of the preprocessed new image based on comparing features of the overlap region of the preprocessed new image and the stored image.

Abstract: An apparatus for generating an overview image of a plurality of images comprises a storage unit and an image processor. The storage unit stores a plurality of processed images of the overview image and is able to provide the overview image containing the plurality of processed images at their assigned positions for displaying. The image processor determines feature points of a new image and compares the determined feature points of the new image with feature points of a stored processed image to identify common feature points and to obtain 3-dimensional positions of the common feature points. Further, the image processor determines common feature points located within a predefined maximum distance of relevance to a reference plane based on the 3-dimensional positions of the common feature points to identify relevant common feature points.

Abstract: A system for and a method of synchronous acquisition of pulsed source light performs monitoring of aircraft flight operation. Diode sources of illumination (18, 108, 208) are pulsed (16, 106, 206) at one-half the video frame rate of an imaging camera (36, 136, 236). Alternate frames view the world-scene with lights of interest pulsed on, and then off, respectively. Video differencing (34, 134, 234) eliminates the background scene, as well as all lights not of interest. Suitable threshholding over a resulting array of camera pixel-differences acquires the desired lights and represents them as point symbology on a display (40, 140, 240). In an enhanced vision landing system embodiment, the desired lights (symbols) overlay or are fused on a thermal image of the scene; alternatively, the symbols overlay a visible scene (TV) image.

Abstract: A system for and a method of synchronous acquisition of pulsed source light performs monitoring of aircraft flight operation. Diode sources of illumination (18, 108, 208) are pulsed (16, 106, 206) at one-half the video frame rate of an imaging camera (36, 136, 236). Alternate frames view the world-scene with lights of interest pulsed on, and then off, respectively. Video differencing (34, 134, 234) eliminates the background scene, as well as all lights not of interest. Suitable threshholding over a resulting array of camera pixel-differences acquires the desired lights and represents them as point symbology on a display (40, 140, 240). In an enhanced vision landing system embodiment, the desired lights (symbols) overlay or are fused on a thermal image of the scene; alternatively, the symbols overlay a visible scene (TV) image.